日用化学工业（中英文）2025，Vol.55Issue(12)：1552-1559,8.DOI:10.3969/j.issn.2097-2806.2025.12.007
聚甘油酯类乳化剂疏水基对液晶形成的影响及其促进机制研究
Effect of hydrophobic groups of polyglycerol ester emulsifiers on liquid crystal formation and its promotion mechanism
摘要
Abstract
In this paper,by investigating the binary phase behavior,surface tension,saturated adsorption capacity and critical packing parameters of polyglycerol ester emulsifiers with different numbers of hydrophobic chains,the influence of hydrophobic groups on the formation of layered liquid crystals of polyglycerol ester emulsifiers was studied.At the same time,the promotion mechanism of critical packing parameters was studied by compounding fatty alcohols in different proportions.The results show that polyglycerol ester emulsifier molecules spontaneously form layered liquid crystal structure,and with the enhancement of hydrophobic interaction,emulsifier molecules are enriched at the gas-liquid interface,CPP increases,the appearance of liquid crystal regions gradually expands to low concentration and high temperature regions,forming crystalline phases in a wider concentration region.The hydrophilic head groups of C18 alcohol and emulsifier molecules form a closer regular arrangement through hydrogen bonding,and the hydrophobic tail chain interact through hydrophobic interaction,which reduces the minimum cross-sectional area A0 of emulsifier molecules and more effectively improves the mixed micelle system.When the concentration is higher than 8%,the critical stacking parameter CPP increases.The hydrophobic interaction between emulsifier-C18 alcohol molecules is enhanced,the number and regularity of liquid crystal structures are significantly increased,which is conducive to the formation of liquid crystal structures.关键词
聚甘油酯类乳化剂/自组装/液晶/临界堆积参数Key words
polyglycerol ester emulsifier/self-assembly/liquid crystals/critical packing parameter分类
化学化工引用本文复制引用
张倩洁,赵振志,王珊珊,顾洁,吕智,张婉萍..聚甘油酯类乳化剂疏水基对液晶形成的影响及其促进机制研究[J].日用化学工业（中英文）,2025,55(12):1552-1559,8.基金项目
上海相宜本草化妆品股份有限公司研究基金资助(J2023-272) （J2023-272）
